Does bluetooth affect internet speed?
 

sorry for the newb question..

when i check the internet on my moto V3xx i get speeds of about 3Mbps. when i tether my n800 to it and check the speeds through the tablet I get about 400kbps..

is this loss due to the bluetooth connection? is there a way to remedy this because we're talking about almost 85% loss!!!

on the phone:
http://www.testmy.net/share2-H9BYK4SWG

on n800 through phone tethered through Bluetooth:
http://www.testmy.net/share2-J7WSCODZE

Re: Does bluetooth affect internet speed?
 

bluetooth is much slower than other wireless protocols, such as wifi. Not much you can do there. I wish we could connect via USB.

Re: Does bluetooth affect internet speed?
 

Bluetooth's limited bandwidth is definitely a weak link when used for tethering purposes. Many of the cellular wwan connections are considerably faster than bluetooth, particularly now that EVxDO Rev A is widely deployed. Bluetooth 2.0 and the 2.1 spec which recently got signed off upon offer something called EDR (extended data rate), which increases the bandwidth a couple fold, but frankly it is still not enough. Bluetooth is, imo, really showing its holes, chiefly due to a lack of forward thinking when the spec was initially designed. A bluetooth 3.0 spec which breaks with the original spec entirely would be most welcome.

A lot of handsets are coming out with 802.11 support these days. I think a great stopgap solution while waiting for a not yet extant future Bluetooth spec to solve all the problems of the world would be to be able to put the WiFi chip and access point mode to share out the WWAN connection. My guess is the FIC NEO 1973 is likely to be the first phone to support this sort of function, due to being completely open source. There are a number of companies making WWAN to WiFi routers including Kyocera, Linksys and Junxion, and it is fairly trivial to roll your own, but all these solutions are far too bulky imo. A cell phone as instant hotspot is definitely on my top ten lists of tech I would like to see in the not too distant future.

Re: Does bluetooth affect internet speed?
 

Actually the bluetooth used on the N800 is slower than the BT on my N95 or my N80 or between laptops.
In transferring the same ~1MB file to the N95 it goes in around 80kbps whereas with the N800 it's around 40-50kbps.

Re: Does bluetooth affect internet speed?
 

A Bluetooth 2.0 connection (as on the N800) has 3Mbps of bandwidth, and as such being able to transfer data at rates of only 400-500Kbps warrants further investigation.

I'd suggest someone file a bug who can provide further details if asked - maybe the Bluetooth implementation on the N800 could do with some tweaking/optimising as it's seriously under performing.

Re: Does bluetooth affect internet speed?
 

So I take it you're seeing slow BT data transfer speeds on the N800 as well?
Bug opened here so please add to it.

Re: Does bluetooth affect internet speed?
 

that does sound inviting... but cellular companies often look to profitable... and a 'free' hotspot is def not in their best interests...

anyways how do i add to the 'bug'?

Re: Does bluetooth affect internet speed?
 

Click on the link to go directly to the bug, but you'll have to register to add anything to it.

Re: Does bluetooth affect internet speed?
 

I am getting 800-900 kbps on a tethered n800-RAZR V3xx and I am right on the border of 3G-EDGE and in the house. I'm not complaining except I wish that at&t would cover more 3G area because most of the time I get EDGE.

Re: Does bluetooth affect internet speed?
 

"A cell phone as instant hotspot is definitely on my top ten lists of tech I would like to see in the not too distant future."

Now that sounds like a really cool must have gadget. Being able to WI-FI my n800 to my cell-phone and onto the web would be fantastic.

Any news or whispers of such devices???

Re: Does bluetooth affect internet speed?
 

Perhaps I'm missing the obvious advantages of a WiFi/cellphone hotspot (though I can imagine the security implications!) why not just use Bluetooth tethering which exists today? Pound for pound when working optimally Bluetooth should offer similar performance to WiFi while using *significantly* less power than WiFi. WiFi is very expensive in terms of power, Bluetooth is not.

Re: Does bluetooth affect internet speed?
 

Exactly. The only disadvantage at the moment is Bluetooth DUN, rather than PAN which by emulating a serial port is limited to about 384kbps (IIRC), rather than about 3Mbps with PAN.

Re: Does bluetooth affect internet speed?
 

Ah, now that might explain the cr@ppy BT DUN performance... however it doesn't explain the poor OBEX push/pull (ie. file transfer) performance.

The BT DUN limitation is another reason to add official PAN support... what's the point in having the latest Nokia 3G phone if you can't use it to it's full potential with the N800? :)

Re: Does bluetooth affect internet speed?
 

Highlighted for emphasis. Especially when a certain N800 owner I know (me) is tethering it to the brand-new Nokia N95 "uber-phone" and getting HORRIBLY slow transfer speeds.
Not only do they need to work on BT OBEX transfer speeds but they just need to expand bluetooth support overall.
The N800 right now has THREE different VoIP options - Skype, Gizmo, and plain ol' SIP/STUN - yet has no support for bluetooth headsets. WTF?
It would be nice if I could use my Jawbone BT headset with my N800 for my VoIP calls at home.

Re: Does bluetooth affect internet speed?
 

Did a test using my Samsung Blackjack. Used the dslreports.com mobile speed test, 1MB file in 3G mode. PIE on the phone 786 kbit/sec, my laptop using a bluetooth dongle 379 kbit/sec, the N800 233 kbit/sec.

Re: Does bluetooth affect internet speed?
 

expediter - is your laptop tethering using Bluetooth DUN or Bluetooth PAN? I wonder if PAN would show any improvements over DUN... I have to admit the laptop isn't exactly turning in a stellar performance either.

Re: Does bluetooth affect internet speed?
 

Bluetooth PAN